//
//Copyright (C) 2005 United States Government as represented by the
//Administrator of the National Aeronautics and Space Administration
//(NASA).  All Rights Reserved.
//
//This software is distributed under the NASA Open Source Agreement
//(NOSA), version 1.3.  The NOSA has been approved by the Open Source
//Initiative.  See the file NOSA-1.3-JPF at the top of the distribution
//directory tree for the complete NOSA document.
//
//THE SUBJECT SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY OF ANY
//KIND, EITHER EXPRESSED, IMPLIED, OR STATUTORY, INCLUDING, BUT NOT
//LIMITED TO, ANY WARRANTY THAT THE SUBJECT SOFTWARE WILL CONFORM TO
//SPECIFICATIONS, ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR
//A PARTICULAR PURPOSE, OR FREEDOM FROM INFRINGEMENT, ANY WARRANTY THAT
//THE SUBJECT SOFTWARE WILL BE ERROR FREE, OR ANY WARRANTY THAT
//DOCUMENTATION, IF PROVIDED, WILL CONFORM TO THE SUBJECT SOFTWARE.
//

package gov.nasa.jpf.symbc.strings;

public enum StringComparator {

   EQ(" == ") { public StringComparator not() { return NE; }},
   NE(" != ") { public StringComparator not() { return EQ; }},
   EQIC(" ==IgnoreCase ") { public StringComparator not() { return NEIC; }},
   NEIC(" !=IgnoreCase ") { public StringComparator not() { return EQIC; }};


   private final String str;

   StringComparator(String str){
	   this.str= str;
   }

   public abstract StringComparator not();

   @Override
   public String toString() {
	 return str;
   }
}